新型组合抑制剂在低品位铜铅硫化矿浮选分离中的应用  

Application of Combined Depressant in Separation of Cu/Pb in Low-grade Sulfide Ore

作　　者：卜勇杰[1] 刘润清[1] 孙伟[1] 孟庆波[1] 

机构地区：[1]中南大学资源加工与生物工程学院,湖南长沙410083

出　　处：《矿冶工程》2013年第5期50-52,55,共4页Mining and Metallurgical Engineering

基　　金：国家自然科学基金(51104179)

摘　　要：对某低品位多金属硫化矿进行了铜铅混浮-精矿铜铅分离实验研究。采用重铬酸钠、偏重亚硫酸钠、CMC和水玻璃组合作抑制剂,不仅成功实现了铜铅分离,而且大大降低了重铬酸盐对环境的污染,获得了良好选矿指标:铜精矿品位为16.61%,回收率为64.14%;铅精矿品位为43.57%,回收率为79.54%。An experimental research was conducted for a low-grade copper-lead-zinc polymetallic sulfide ore with beneficiation technology of copper-lead bulk flotation followed by copper-lead separation. By using a combined depressant consisting of NazCr2O7, Na/S2O5, CMC and Na2SiO3, a Cu/Pb separation can be successfully realized with pollution caused by dichromate dramatically reduced, leading to a preferable processing index： the obtained copper concentrate grading 16.61% Cu at a recovery of 64.14%, and the obtained lead concentrate grading 43.57% Pb at a recovery of 79.54%, respectively.

关 键 词：浮选 铜铅分离 组合抑制剂 硫化矿 

分 类 号：TD923[矿业工程—选矿]